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#cosmology

5 posts5 participants0 posts today
Mikko Tuomi

Two blind spots torture physicists: the birth of the #universe and the center of a black hole.

The former may feel like a moment in time and the latter a point in space, but in both cases the normally interwoven threads of space and time seem to stop short.

These mysterious points are known as singularities and they break our best theory of #gravity.

A trilogy of theorems hints that physicists must go to the ends of space and time to find a fix.

#physics #cosmology
quantamagazine.org/singulariti

Quanta Magazine · Singularities in Space-Time Prove Hard to Kill | Quanta MagazineBlack hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go to the ends of space and time to find a fix.
Soh Kam Yung

Interesting. @startswithabang

"The team proposes that the black hole formed there via the direct collapse of a gas cloud – a process that may explain some of the incredibly massive black holes Webb has found in the early universe."

science.nasa.gov/blogs/webb/20

Paper [ iopscience.iop.org/article/10. [

A pair of distant galaxies that form the rough shape of an infinity symbol seen at roughly a 45-degree angle. Two overlapping, fuzzy rings with brighter blue patches are at upper right and lower left. At the center of each ring is a bright yellow blob, which is the nucleus. Where the two rings overlap on the left side, there is a mottled green patch of glowing gas midway between the two yellow nuclei. It is offset slightly to the left.
NASA Science · NASA’s Webb Finds Possible ‘Direct Collapse’ Black HoleBy NASA Webb Mission Team
#BlackHoles#Cosmology#JWST
Charlie McHenry

Most massive #BlackHole merger to date detected… For my #astronomy and #Cosmology nerd followers I’m sure this is a big deal.

"This is the most massive black hole binary we've observed through gravitational waves, and it presents a real challenge to our understanding of black hole formation," says Mark Hannam of Cardiff University and a member of the LVK Collaboration. "Black holes this massive are forbidden through standard stellar evolution models. One possibility is that the two black holes in this binary formed through earlier mergers of smaller black holes." #physics #science

caltech.edu/about/news/ligo-de

Side-by-side-by of the twin LIGO detector buildings.
California Institute of TechnologyLIGO Detects Most Massive Black Hole Merger to DateGravitational waves from massive black holes challenge current astrophysical models
Daniel Pomarède

☑️ The Vera C. Rubin Observatory
☑️ The Vera Rubin Ridge on Mars
☑️ The Asteroid 5726 Rubin
☑️ The Nvidia Rubin Superchip
☑️ The Vera Rubin's U.S. Quarter
☑️ The Vera Rubin Memorial Fund
☑️ The Vera Rubin Early Career Prize

Things Named After Carnegie Astronomer Vera Rubin

carnegiescience.edu/news/thing

carnegiescience.eduThings Named After Carnegie Astronomer Vera RubinLong before Carnegie astronomer Vera Rubin was awarded the National Medal of Science in 1993, the scientific community had come to understand her groundbreaking contributions to our understanding of the universe. In addition to the Vera C. Rubin Observatory, she is immortalized in a number of other astronomical objects, awards, and projects.
#VeraRubin#Rubin#RubinObservatory
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